EP3353758B1 - Method and system for generating and transmitting an emergency call signal - Google Patents

Method and system for generating and transmitting an emergency call signal Download PDF

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Publication number
EP3353758B1
EP3353758B1 EP16779005.4A EP16779005A EP3353758B1 EP 3353758 B1 EP3353758 B1 EP 3353758B1 EP 16779005 A EP16779005 A EP 16779005A EP 3353758 B1 EP3353758 B1 EP 3353758B1
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EP
European Patent Office
Prior art keywords
emergency call
base module
switching unit
central switching
connection
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EP16779005.4A
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German (de)
French (fr)
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EP3353758A1 (en
Inventor
Manius Schinkel
Christoph Schwenk
Christian SCHMUCKING
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Digades GmbH
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Digades GmbH
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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/001—Alarm cancelling procedures or alarm forwarding decisions, e.g. based on absence of alarm confirmation
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
    • G08G1/205—Indicating the location of the monitored vehicles as destination, e.g. accidents, stolen, rental
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L13/00—Speech synthesis; Text to speech systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/51—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing
    • H04M3/5116—Centralised call answering arrangements requiring operator intervention, e.g. call or contact centers for telemarketing for emergency applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2242/00—Special services or facilities
    • H04M2242/04—Special services or facilities for emergency applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2242/00—Special services or facilities
    • H04M2242/30—Determination of the location of a subscriber

Definitions

  • the present invention relates to a method and a system for generating and transmitting an emergency call signal.
  • a pan-European electronic emergency call system also known as an "e-call” system, will be installed by 2018, in which a telecommunication connection to an emergency call center is automatically established in the event of an accident so that a driver of the vehicle can communicate with the emergency call center can.
  • the disadvantage of this solution is that the system reaches its limits if, after the accident, none of the vehicle occupants is able to speak to the emergency call center, for example due to unconsciousness, or if they cannot speak the language of the emergency call center employee.
  • the in Data of the "MSD" (Minimum Set of Data) transmitted as part of the emergency call only contain the data about the vehicle and its position anchored as a minimum in the standard.
  • WO 2011/059515 A1 discloses a system for generating and transmitting an emergency call signal according to the preamble of claim 10.
  • the present invention is therefore based on the object of developing a method and a system that avoids the disadvantages mentioned, with which information about the vehicle and the driver can be transmitted to an emergency call center independent of language.
  • a method for generating and transmitting an emergency call signal is initiated by generating an emergency call signal with a minimum data set (MSD) by a base module arranged on the road vehicle in the event of a dangerous situation in a road vehicle, typically a passenger car, truck, motorcycle or quad.
  • the minimum data record contains at least one piece of identity information for the respective base module, for example a serial number, and position information of the base module determined by satellite-based navigation or by identifying the radio cell in which the road vehicle is located (e.g. the cell ID of the mobile radio base station).
  • the emergency call signal is transmitted by establishing a first telecommunication connection by means of predetermined connection information stored in the base module to a central switching unit.
  • the central switching unit then decodes the emergency call signal with regard to the coded information contained therein and, with the aid of this information and the additional information of a user, for example a driver, which may be stored in the central switching unit, generates a text file in a language that is written in a by the Position information defined area is common, preferably an official language of the area in which the road vehicle together with the base module is currently located.
  • the data stored in a storage unit of the central switching unit converts the language-dependent text file into an audio file transformed.
  • the base module then establishes a conference call with an emergency call center, which can also be referred to as an ambulance control center, and the audio file is played back at least once as spoken information by the central switching unit.
  • An alternative sequence that does not require a conference call provides that the minimum data set (MSD) is transmitted to the central switching unit via a data channel in the cellular network, this transmits the generated voice file to the base module via a data channel and then the connection with the central switching unit is terminated .
  • the base module then establishes a second voice connection with the emergency call center and plays the voice file generated by the central switching unit.
  • the data set transmitted as an emergency call signal is formatted according to the e-Call standard and includes at least the minimum data set (MSD).
  • the base module can independently set up a telecommunication connection to an emergency call center and transmit both the minimum data set (MSD) and support a voice connection.
  • MSD minimum data set
  • a voice connection can be supported by establishing and maintaining a radio connection or a telephone connection.
  • the base module can transmit the minimum data record (MSD) conforming to the pan-European e-Call standard, followed by the "read out” variant.
  • MSD minimum data record
  • the emergency call signal contains at least information through which the road vehicle affected by a dangerous situation, such as an accident, is clearly identifiable due to the base module permanently mounted on the road vehicle and enables the exact position to be determined, all essential information is available for the emergency call center To be aware of the dangerous situation. Since the connection information is stored in the base module, the emergency call signal can be sent independently.
  • the transmission of the minimum data set (MSD) in coded form serves on the one hand for anonymized transmission, but on the other hand can also keep the data volume to be transmitted low by means of packed data.
  • the emergency call center can evaluate the transmitted information on the dangerous situation in any case. Since the processing of the emergency call signal and the generation of language-dependent text and audio files are only carried out in the central switching unit and not already in the basic module, new languages, additional information or innovations can be entered more easily because the vehicle concerned is not up to date in a workshop State must be brought, on the other hand, less storage space is required in the base module, so that this can be built more compact and cheaper.
  • Particularly noteworthy here is the waiver of a DSP (digital signal processor) for generating the speech in the various languages, the waiver of larger controllers and the waiver of larger memories.
  • DSP digital signal processor
  • a transmission of data can fail due to the availability of the necessary in-band transmission technology according to the pan-European e-call in the PSAP (rescue control centers).
  • e-call-relevant data such as position, vehicle class, VIN, etc. are transmitted using the in-band method, i.e. within the voice frequency band, as a minimum set of data within the pan-European e-call.
  • a remote station that can decrypt this data can recognize the relevant data and react accordingly.
  • a present-day remote station without the ability to decode in-band data would not receive any information; in this case, the position, vehicle class, etc. is specified in the present invention by voice by reading out the automatically generated file with the relevant information becomes.
  • the first telecommunication connection and / or the second telecommunication connection is a radio connection or a telephone connection.
  • at least one of the telecommunication connections is designed as an Internet telephony connection, which is also referred to as a “Voiceover Internet Protocol” (VoIP) connection.
  • VoIP Voiceover Internet Protocol
  • the central switching unit can transmit a stop signal to the base module as soon as the text file has been generated in the central switching unit, so that the transmission of the emergency call signal by the base module is ended. This helps to avoid unnecessary information transfer, especially since, for example, in mass crashes - in which a large number of such emergency call signals are sent simultaneously - telecommunication channels are often overloaded.
  • the detection of several emergency calls from the same accident or accident area is only possible through a central contact point, such as a central switching unit.
  • the decoded information of the emergency call signal can be forwarded from the central switching unit to an external storage unit and archived there. This can be used for evidence or documentation purposes, for example, after the hazardous situation.
  • a notification from other parties can be preconfigured, can be done by the central switching unit.
  • the system could also be used to record traffic and accident data and, after appropriate evaluation, make it available to interested private and public organizations.
  • the user of the road vehicle can be connected to the base module in a voice connection via a wireless radio link, preferably via a wireless radio link in accordance with the industry standard IEEE 802.15.1, which is also known as Bluetooth.
  • a wireless radio link preferably via a wireless radio link in accordance with the industry standard IEEE 802.15.1, which is also known as Bluetooth.
  • the user can also communicate with the emergency call center and pass on information about their own well-being or other people affected by the dangerous situation or the accident.
  • a conference call is preferably set up between the base module, the emergency call center and the central switching unit, in which the user can come into direct contact with the emergency call center
  • the audio file can be played automatically several times to the emergency call center after the second telecommunication connection has been established, in order to still transmit information that may not be understood when played for the first time.
  • a new playback can also be initiated by the emergency call center.
  • the audio file can also be played to the emergency call center in constant repetition until it or the driver stops this playback by voice or another signal transmitted in some other way. This can be achieved, for example, by disconnecting the connection.
  • the establishment of the first telecommunication connection is indicated to the user of the vehicle by the base module, for example by a voice message or an optical signal, and the user can end the transmission of the emergency signal so as not to trigger an unnecessary rescue operation in the event of a false alarm.
  • the position information can be obtained from a satellite-based system for position detection such as the Global Positioning System (GPS), Glonass, Beidou or Galileo.
  • GPS Global Positioning System
  • Glonass Glonass
  • Beidou Galileo
  • the base module has a receiving unit that is matched to the respective system.
  • the cell ID of the mobile radio base station can be used by the central switching unit in order to roughly determine the position.
  • this can lead to a great deal of blurring and result in the emergency call center not sending any help.
  • a system for generating and transmitting an emergency call signal has a base module and a central switching unit.
  • the base module is arranged on a road vehicle and is set up to independently generate and generate an emergency call signal with a minimum data set containing at least identity information of the respective base module and position information of the base module determined by satellite-supported navigation in the event of a dangerous situation of the road vehicle a first telecommunication connection by means of predetermined connection information stored in the base module to a central switching unit.
  • the central switching unit is set up to subsequently decode the emergency call signal with regard to the information contained therein and to generate a text file from the position information by the central switching unit in a language that is usually spoken in an area defined by the position information and this language-dependent text file by in to convert data stored in a storage unit of the central switching unit into an audio file.
  • the central switching unit is also designed to transmit the audio file to the base module via the first telecommunication connection.
  • the base module is also designed to subsequently contact an emergency call center by establishing a second telecommunication connection and to play the audio file.
  • the base module can be designed to contact an emergency call center by establishing a further telecommunication connection in the form of a conference call and the central switching unit can at the same time be designed to play the audio file in the conference call.
  • the base module can also be designed to independently establish a telecommunication connection to an emergency call center and to transmit the minimum data set (MSD) as well as to support a voice connection in the event that the first telecommunication connection to the central switching unit fails.
  • MSD minimum data set
  • the central switching unit is preferably a server which has a text-to-speech unit for converting the text file into the audio file.
  • the central switching unit can also serve as a database to optionally store sensitive data about the driver and forward it in an emergency. This can include health information such as Blood group, allergies, and illnesses or contacts that should be notified in an emergency.
  • the central switching unit can store data that is also generated by the base module during normal operation, i.e. in an accident-free company. This can e.g. Be position data or data on driving behavior. Position data can e.g. serve to locate a stolen vehicle. This data can also be called up by phone via an app or by voice message.
  • the described system is typically set up to carry out the described method or the described method can be carried out with the described system.
  • a SIP provider 9 Session Initiation Protocol
  • an emergency call center 6 for receiving emergency calls are involved.
  • FIG. 1 shows a schematic diagram in which communication paths between individual units of a system for generating and transmitting an emergency call signal are drawn.
  • the base module 1 transmits an emergency signal with a minimum data record (MSD), which is at least one identification number of the base module affected by the accident, to the central switching unit 2 via the cellular network and the SIP provider 9 (Session Initiation Protocol) via a first telecommunication connection 3a 1 and a position thereof.
  • the base module 1 is arranged on the vehicle and has a receiver for a satellite-supported navigation system by means of which the position can be determined.
  • a transmission unit is provided which can come into contact with the central switching unit 2 via the cellular network and the SIP provider 9. This transmits the emergency signal in coded form, which is to be understood in particular as an encrypted signal and / or a modulated or packed signal.
  • the emergency call signal is forwarded via a first telecommunication connection 3a, in the illustrated embodiment a VoIP connection, and in the in-band communication server as the central one Switching unit 2 further processed.
  • the SIP provider 9 can also be part of the in-band communication server as the central switching unit 2.
  • the extension 11 in the in-band communication server as the central switching unit 2 e.g. an Asterisk PBX (Private Branch Exchange) receives the emergency call signal and transmits it to the in-band server 12, which decodes the emergency call signal. After decoding, the in-band server 12 creates a language dependent text file.
  • the language of the file is based on an official language of the country or region in which the vehicle is currently located according to the position information.
  • several corresponding language-dependent text files are stored in a memory of the in-band communication server as the central switching unit 2.
  • the language-dependent text file is transferred to a text-to-speech unit 7, which also has an internal memory unit 8.
  • the text-to-speech unit 7, which is also referred to as "text-to-speech" unit (TTS)
  • TTS text-to-speech
  • the text-to-speech unit 7 forwards the audio file to the extension 11.
  • the text-to-speech unit 7 transmits a stop signal via the extension 11 in order to prevent further transmission of the emergency call signal.
  • the information contained in the original emergency call signal as well as the generated text file and the generated audio file are transmitted to an external memory unit 5 via a communication channel 13, regardless of previous steps, and are stored there for preservation of evidence.
  • the extension 11, the in-band server 12 and the text-to-speech unit 7 can be combined in a single server or exist as separate servers.
  • the extension 11 transmits the audio file via the SIP provider 9 and the first telecommunication connection 3b, which in Figure 1 for the sake of clarity in two arrows with different reference numerals, to the base module 1.
  • This is typically in the form of a call that the base module 1 accepts and a conference call between an emergency call center 6 via a second telecommunication link 4, an occupant of the crashed vehicle and the in-band communication server 2 builds.
  • the telephone connection to the central switching unit 2 can be maintained and the second telephone connection to the emergency call center 6 can be established as a conference call by the base module 1.
  • the emergency call center 6, also referred to as "public answering safety point, PSAP" is played at least twice the audio file transmitted by the central switching unit 2 and can then attempt to communicate with one of the vehicle occupants, typically a driver, via the second communication link 4 Vehicle, speak for more information about the accident.
  • PSAP public answering safety point
  • the corresponding vehicle occupant is a participant in the conference call via a Bluetooth connection.
  • the base module 1 can independently set up a connection to the emergency center 6 after a predetermined time has elapsed and try to transmit the data in-band and establish the voice connection .
  • an optical signal such as a flashing LED, to indicate to the vehicle operator that the emergency call signal has been sent and for one of the drivers to prevent the emergency call signal from being sent by pressing a specific button.
  • the conference call is finally ended either by the emergency call center 6 or the base module 1, for example initiated by one of the vehicle occupants.

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Description

Die vorliegende Erfindung betrifft ein Verfahren und ein System zum Generieren und Übertragen eines Notrufsignals.The present invention relates to a method and a system for generating and transmitting an emergency call signal.

Bei Automobilen werden aufgrund gestiegener Sicherheitsanforderungen zunehmend selbstständig agierende Sicherheitssysteme gefordert. In diesem Zusammenhang wird bis 2018 ein pan-europäisches elektronisches Notrufsystem, auch als "e-Call"-System bekannt, installiert, bei dem bei einem Unfall automatisch eine Telekommunikationsverbindung zu einer Notrufzentrale aufgebaut wird, so dass ein Fahrer des Fahrzeugs mit der Notrufzentrale kommunizieren kann.In automobiles, independently operating safety systems are increasingly required due to increased safety requirements. In this context, a pan-European electronic emergency call system, also known as an "e-call" system, will be installed by 2018, in which a telecommunication connection to an emergency call center is automatically established in the event of an accident so that a driver of the vehicle can communicate with the emergency call center can.

Nachteilig an dieser Lösung ist, dass das System dann an Grenzen stößt, wenn nach dem Unfall keiner der Fahrzeuginsassen mehr in der Lage ist, mit der Notrufzentrale zu sprechen, beispielsweise wegen einer Bewusstlosigkeit, oder die Sprache des Mitarbeiters der Notrufzentrale nicht beherrscht. Die im Rahmen des Notrufes übermittelten Daten des "MSD" (Minimum Set of Data) beinhalten nur die als Minimum im Standard verankerten Daten über das Fahrzeug und dessen Position.The disadvantage of this solution is that the system reaches its limits if, after the accident, none of the vehicle occupants is able to speak to the emergency call center, for example due to unconsciousness, or if they cannot speak the language of the emergency call center employee. The in Data of the "MSD" (Minimum Set of Data) transmitted as part of the emergency call only contain the data about the vehicle and its position anchored as a minimum in the standard.

WO 2011/059515 A1 offenbart ein System zum Generieren und Übertragen eines Notrufsignals nach dem Obergriff des Anspruchs 10. WO 2011/059515 A1 discloses a system for generating and transmitting an emergency call signal according to the preamble of claim 10.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und ein System zu entwickeln, dass die genannten Nachteile vermeidet, mit dem also sprachunabhängig Informationen über das Fahrzeug und den Fahrer an eine Notrufzentrale übermittelt werden können.The present invention is therefore based on the object of developing a method and a system that avoids the disadvantages mentioned, with which information about the vehicle and the driver can be transmitted to an emergency call center independent of language.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren nach Anspruch 1 und ein System nach Anspruch 10. Vorteilhafte Ausgestaltungen und Weiterbildungen sind in den abhängigen Ansprüchen beschrieben.This object is achieved according to the invention by a method according to claim 1 and a system according to claim 10. Advantageous configurations and developments are described in the dependent claims.

Ein Verfahren zum Generieren und Übertragen eines Notrufsignals wird eingeleitet, indem bei einer Gefahrensituation eines Straßenfahrzeugs, typischerweise eines Personenkraftwagens, eines Lastkraftwagens, eines Motorrades oder eines Quads, durch ein an dem Straßenfahrzeug angeordnetes Basismodul ein Notrufsignal mit einem minimalen Datensatz (MSD) generiert wird. Der minimale Datensatz enthält zumindest eine Identitätsinformation des jeweiligen Basismoduls, beispielsweise eine Seriennummer, und eine durch satellitengestützte Navigation oder durch eine Identifikation der Funkzelle, in der sich das Straßenfahrzeug befindet (z.B. der Cell-ID der Mobilfunkbasisstation) ermittelte Positionsinformation des Basismoduls.A method for generating and transmitting an emergency call signal is initiated by generating an emergency call signal with a minimum data set (MSD) by a base module arranged on the road vehicle in the event of a dangerous situation in a road vehicle, typically a passenger car, truck, motorcycle or quad. The minimum data record contains at least one piece of identity information for the respective base module, for example a serial number, and position information of the base module determined by satellite-based navigation or by identifying the radio cell in which the road vehicle is located (e.g. the cell ID of the mobile radio base station).

Durch Herstellen einer ersten Telekommunikationsverbindung mittels vorherbestimmter und im Basismodul hinterlegter Verbindungsinformationen zu einer zentralen Vermittlungseinheit wird das Notrufsignal übermittelt. Nachfolgend wird von der zentralen Vermittlungseinheit das Notrufsignal bezüglich der darin enthaltenen codierten Informationen decodiert und mit Hilfe dieser Informationen und der unter Umständen in der zentralen Vermittlungseinheit abgelegten weiteren Informationen eines Benutzers, beispielsweise eines Fahrers, eine Textdatei in einer Sprache generiert, die in einem durch die Positionsinformation definierten Gebiet üblich ist, vorzugsweise einer Amtssprache des Gebietes, in dem sich das Straßenfahrzeug samt dem Basismodul gerade befindet. Durch die in einer Speichereinheit der zentralen Vermittlungseinheit hinterlegten Daten wird die sprachabhängige Textdatei in eine Audiodatei umgewandelt. Nachfolgend wird von dem Basismodul durch Herstellen einer Konferenzschaltung mit einer Notrufzentrale, die auch als Rettungsleitstelle bezeichnet werden kann, Kontakt aufgenommen und die Audiodatei durch die zentrale Vermittlungseinheit mindestens einmal als gesprochene Information abgespielt.The emergency call signal is transmitted by establishing a first telecommunication connection by means of predetermined connection information stored in the base module to a central switching unit. The central switching unit then decodes the emergency call signal with regard to the coded information contained therein and, with the aid of this information and the additional information of a user, for example a driver, which may be stored in the central switching unit, generates a text file in a language that is written in a by the Position information defined area is common, preferably an official language of the area in which the road vehicle together with the base module is currently located. The data stored in a storage unit of the central switching unit converts the language-dependent text file into an audio file transformed. The base module then establishes a conference call with an emergency call center, which can also be referred to as an ambulance control center, and the audio file is played back at least once as spoken information by the central switching unit.

Eine alternative Abfolge, die keine Konferenzschaltung benötigt, sieht vor, dass der minimale Datensatz (MSD) per Datenkanal im Mobilfunknetz an die zentrale Vermittlungseinheit übermittelt wird, diese die generierte Sprachdatei per Datenkanal an das Basismodul übermittelt und dann die Verbindung mit der zentralen Vermittlungseinheit aufgelöst wird. In Folge baut das Basismodul eine zweite Sprachverbindung mit der Notrufzentrale auf und spielt die von der zentralen Vermittlungseinheit generierte Sprachdatei ab. Der als Notrufsignal übermittelte Datensatz ist nach dem e-Call-Standard formatiert und umfasst mindestens den minimalen Datensatz (MSD).An alternative sequence that does not require a conference call provides that the minimum data set (MSD) is transmitted to the central switching unit via a data channel in the cellular network, this transmits the generated voice file to the base module via a data channel and then the connection with the central switching unit is terminated . The base module then establishes a second voice connection with the emergency call center and plays the voice file generated by the central switching unit. The data set transmitted as an emergency call signal is formatted according to the e-Call standard and includes at least the minimum data set (MSD).

Im Falle eines Nichtzustandekommens der ersten Telekommunikationsverbindung zu der zentralen Vermittlungseinheit kann durch das Basismodul selbständig eine_Telekommunikationsverbindung zu einer Notrufzentrale hergestellt und sowohl der minimale Datensatz (MSD) übermittelt, als auch eine Sprachverbindung unterstützt werden. Eine Sprachverbindung kann durch den Aufbau und das Aufrechterhalten einer Funkverbindung oder einer Telefonverbindung unterstützt werden.If the first telecommunication connection to the central switching unit does not come about, the base module can independently set up a telecommunication connection to an emergency call center and transmit both the minimum data set (MSD) and support a voice connection. A voice connection can be supported by establishing and maintaining a radio connection or a telephone connection.

Das Basismodul kann am Anfang der Sprachverbindung zu der Notrufzentrale den minimalen Datensatz (MSD) konform mit dem pan-europäischen e-Call-Standard, gefolgt von der "vorgelesenen" Variante, übermitteln.At the beginning of the voice connection to the emergency call center, the base module can transmit the minimum data record (MSD) conforming to the pan-European e-Call standard, followed by the "read out" variant.

Dadurch, dass das Notrufsignal mindestens Informationen enthält, durch die das von einer Gefahrensituation, wie einem Unfall betroffene Straßenfahrzeug aufgrund des fest an dem Straßenfahrzeug montierten Basismoduls eindeutig identifizierbar ist und eine genaue Feststellung der Position ermöglicht, liegen alle wesentlichen Informationen vor, um die Notrufzentrale in Kenntnis von der Gefahrensituation zu setzen. Indem die Verbindungsinformation im Basismodul hinterlegt ist, kann selbstständig das Notrufsignal abgesetzt werden.Because the emergency call signal contains at least information through which the road vehicle affected by a dangerous situation, such as an accident, is clearly identifiable due to the base module permanently mounted on the road vehicle and enables the exact position to be determined, all essential information is available for the emergency call center To be aware of the dangerous situation. Since the connection information is stored in the base module, the emergency call signal can be sent independently.

Die Übermittlung des minimalen Datensatzes (MSD) in codierter Form dient einerseits einer anonymisierten Übertragung, kann andererseits aber auch das zu übertragende Datenvolumen durch gepackte Daten gering halten. Durch die Umwandlung der Informationen des Notrufsignals in eine Audiodatei, die in einer Sprache gehalten ist, die in dem durch die Positionsinformationen definierten Gebiet gesprochen wird, kann die Notrufzentrale die übermittelten Informationen zur Gefahrensituation in jedem Fall auswerten. Da eine Verarbeitung des Notrufsignals und das Erzeugen sprachabhängiger Text- und Audiodateien erst in der zentralen Vermittlungseinheit und nicht bereits im Basismodul durchgeführt wird, sind zum Einen neue Sprachen, weitere Informationen oder Neuerungen einfacher einpflegbar, da das betroffene Fahrzeug nicht in einer Werkstatt auf den neuesten Stand gebracht werden muss, zum Anderen wird weniger Speicherplatz in dem Basismodul benötigt, so dass dieses kompakter und kostengünstiger gebaut werden kann. Hier ist insbesondere der Verzicht auf einen DSP (Digitaler Signalprozessor) zum Erzeugen der Sprache in den verschiedenen Sprachen, der Verzicht auf größere Controller, und der Verzicht auf größere Speicher hervorzuheben. In Bezug auf die Software kann auf eine kompaktere Softwarearchitektur hingewiesen werden.The transmission of the minimum data set (MSD) in coded form serves on the one hand for anonymized transmission, but on the other hand can also keep the data volume to be transmitted low by means of packed data. By converting the information of the emergency call signal into an audio file that is held in a language that is spoken in the area defined by the position information, the emergency call center can evaluate the transmitted information on the dangerous situation in any case. Since the processing of the emergency call signal and the generation of language-dependent text and audio files are only carried out in the central switching unit and not already in the basic module, new languages, additional information or innovations can be entered more easily because the vehicle concerned is not up to date in a workshop State must be brought, on the other hand, less storage space is required in the base module, so that this can be built more compact and cheaper. Particularly noteworthy here is the waiver of a DSP (digital signal processor) for generating the speech in the various languages, the waiver of larger controllers and the waiver of larger memories. With regard to the software, a more compact software architecture can be pointed out.

Eine Übermittlung von Daten kann an der Verfügbarkeit der nötigen In-Band Übertragungstechnologie gemäß dem pan-europäischen e-Call in den PSAP (Rettungsleitstellen) scheitern. Im pan-europäischen e-Call werden e-Callrelevante Daten, wie Position, Fahrzeugklasse, VIN usw. per In-Band Methode, also innerhalb des Sprachfrequenzbandes, als Minimum Set of Data im Rahmen des pan-europäischen e-Calls übertragen. Eine Gegenstelle, die diese Daten entschlüsseln kann, hat die Möglichkeit, die relevanten Daten zu erkennen und entsprechend zu reagieren. Eine heutige Gegenstelle ohne die Möglichkeit, In-Band-Daten zu decodieren, würde keine Angaben erhalten, die Angabe von Position, Fahrzeugklasse usw. erfolgt in diesem Fall in der vorliegenden Erfindung per Sprache, indem die automatisch generierte Datei, mit den relevanten Informationen vorgelesen wird. In Ländern, wo keine In-Band-Kommunikation unterstützt wird (z. B. außerhalb der EU), bietet das ebenfalls den Vorteil, dass der Notrufentgegennehmende eine Notrufansage in seiner Landessprache erhält und die relevanten Daten (Position, Fahrzeugklasse usw.) angesagt bekommt. Die Ansage kann sich wiederholen. Das vorliegende Notrufsystem ist also völlig unabhängig von dem pan-europäischen e-Call-Standard zu betreiben, bleibt jedoch kompatibel.A transmission of data can fail due to the availability of the necessary in-band transmission technology according to the pan-European e-call in the PSAP (rescue control centers). In the pan-European e-call, e-call-relevant data such as position, vehicle class, VIN, etc. are transmitted using the in-band method, i.e. within the voice frequency band, as a minimum set of data within the pan-European e-call. A remote station that can decrypt this data can recognize the relevant data and react accordingly. A present-day remote station without the ability to decode in-band data would not receive any information; in this case, the position, vehicle class, etc. is specified in the present invention by voice by reading out the automatically generated file with the relevant information becomes. In countries where in-band communication is not supported (e.g. outside the EU), this also has the advantage that the person receiving the emergency call receives an emergency call announcement in their national language and the relevant data (position, vehicle class, etc.) is announced . The announcement can be repeated. The present emergency call system can therefore be operated completely independently of the pan-European e-Call standard, but remains compatible.

Es kann außerdem vorgesehen sein, dass die erste Telekommunikationsverbindung und/oder die zweite Telekommunikationsverbindung eine Funkverbindung bzw. Telefonverbindung ist. Typischerweise ist zumindest eine der Telekommunikationsverbindungen als Internet-Telefonie-Verbindung ausgeführt, die auch als "Voiceover-Internet-Protocol" (VolP)-Verbindung bezeichnet wird.It can also be provided that the first telecommunication connection and / or the second telecommunication connection is a radio connection or a telephone connection. Typically, at least one of the telecommunication connections is designed as an Internet telephony connection, which is also referred to as a “Voiceover Internet Protocol” (VoIP) connection.

Die zentrale Vermittlungseinheit kann ein Stoppsignal an das Basismodul übertragen, sobald die Textdatei in der zentralen Vermittlungseinheit generiert wurde, so dass das Übermitteln des Notrufsignals durch das Basismodul beendet wird. Dies hilft, unnötigen Informationsübertrag zu vermeiden, zumal, beispielsweise bei Massencrashs - bei denen gleichzeitig eine Vielzahl derartiger Notrufsignale abgesetzt werden - Telekommunikationskanäle oftmals überlastet sind. Die Erkennung von mehreren Notrufen von demselben Unfall oder Unfallbereich ist nur durch eine zentrale Anlaufstelle, wie einer zentralen Vermittlungseinheit möglich.The central switching unit can transmit a stop signal to the base module as soon as the text file has been generated in the central switching unit, so that the transmission of the emergency call signal by the base module is ended. This helps to avoid unnecessary information transfer, especially since, for example, in mass crashes - in which a large number of such emergency call signals are sent simultaneously - telecommunication channels are often overloaded. The detection of several emergency calls from the same accident or accident area is only possible through a central contact point, such as a central switching unit.

Die decodierten Informationen des Notrufsignals können von der zentralen Vermittlungseinheit an eine externe Speichereinheit weitergeleitet und dort archiviert werden. Dies kann zum Beispiel nach der Gefahrensituation zu Beweis- bzw. Dokumentationszwecken verwendet werden.The decoded information of the emergency call signal can be forwarded from the central switching unit to an external storage unit and archived there. This can be used for evidence or documentation purposes, for example, after the hazardous situation.

Auch eine Benachrichtigung von weiteren Parteien, die beispielsweise durch den Fahrer oder einen anderen Benutzer des Fahrzeugs in der zentralen Vermittlungseinheit vorkonfiguriert werden können, kann durch die zentrale Vermittlungseinheit erfolgen. Das System könnte zusätzlich verwendet werden, um Verkehrs- und Unfalldaten zu erfassen und nach geeigneter Auswertung interessierten privaten und öffentlichen Organisationen zur Verfügung stellen.Also a notification from other parties, for example by the driver or another user of the vehicle in the central switching unit can be preconfigured, can be done by the central switching unit. The system could also be used to record traffic and accident data and, after appropriate evaluation, make it available to interested private and public organizations.

Der Benutzer des Straßenfahrzeugs, typischerweise der Fahrer, kann über eine kabellose Funkverbindung, vorzugsweise über eine kabellose Funkverbindung nach dem Industriestandard IEEE 802.15.1, der auch als Bluetooth bekannt ist, mit dem Basismodul in einer Sprachverbindung verbunden sein. Hierdurch kann der Benutzer auch mit der Notrufzentrale kommunizieren und Informationen zum eigenen Befinden oder weiteren von der Gefahrensituation bzw. dem Unfall betroffenen Personen weitergeben. Vorzugsweise wird hierzu eine Konferenzschaltung zwischen dem Basismodul, der Notrufzentrale und der zentralen Vermittlungseinheit aufgebaut, bei der der Benutzer in direkten Kontakt mit die Notrufzentrale treten kann
In besonders bevorzugter Weise kann die Audiodatei automatisiert mehrere Male nach dem Herstellen der zweiten Telekommunikationsverbindung der Notrufzentrale vorgespielt werden, um eventuell beim erstmaligen Abspielen nicht verstandene Informationen noch zu übermitteln. Es kann auch ein erneutes Abspielen von der Notrufzentrale initiiert werden. Außerdem kann auch die Audiodatei in ständiger Wiederholung der Notrufzentrale vorgespielt werden, bis diese oder der Fahrer durch Sprache oder ein anderweitig übermitteltes Signal dieses Abspielen stoppt. Dies kann beispielsweise durch Trennung der Verbindung erreicht werden.The user of the road vehicle, typically the driver, can be connected to the base module in a voice connection via a wireless radio link, preferably via a wireless radio link in accordance with the industry standard IEEE 802.15.1, which is also known as Bluetooth. In this way, the user can also communicate with the emergency call center and pass on information about their own well-being or other people affected by the dangerous situation or the accident. For this purpose, a conference call is preferably set up between the base module, the emergency call center and the central switching unit, in which the user can come into direct contact with the emergency call center
In a particularly preferred manner, the audio file can be played automatically several times to the emergency call center after the second telecommunication connection has been established, in order to still transmit information that may not be understood when played for the first time. A new playback can also be initiated by the emergency call center. In addition, the audio file can also be played to the emergency call center in constant repetition until it or the driver stops this playback by voice or another signal transmitted in some other way. This can be achieved, for example, by disconnecting the connection.

Es kann auch vorgesehen sein, dass durch das Basismodul das Herstellen der ersten Telekommunikationsverbindung dem Benutzer des Fahrzeugs angezeigt wird, beispielsweise durch eine Sprachnachricht oder ein optisches Signal, und der Benutzer das Übertragen des Notrufsignals beenden kann, um bei einem Fehlalarm keinen unnötigen Rettungseinsatz auszulösen.It can also be provided that the establishment of the first telecommunication connection is indicated to the user of the vehicle by the base module, for example by a voice message or an optical signal, and the user can end the transmission of the emergency signal so as not to trigger an unnecessary rescue operation in the event of a false alarm.

Die Positionsinformation kann hierbei aus einem satellitenbasierten System zur Positionserkennung wie beispielsweise dem Global Positioning System (GPS), Glonass, Beidou oder Galileo erhalten werden. Dies erlaubt eine Positionsbestimmung mit sehr hoher Genauigkeit. Das Basismodul weist in diesem Fall eine auf das jeweilige System abgestimmte Empfangseinheit auf. Alternativ kann die Cell-ID der Mobilfunkbasisstation von der zentralen Vermittlungseinheit verwendet werden, um die Position grob zu bestimmen. Dies kann allerdings zu recht großer Unschärfe führen und dazu führen, dass die Notrufzentrale keine Hilfe senden wird.The position information can be obtained from a satellite-based system for position detection such as the Global Positioning System (GPS), Glonass, Beidou or Galileo. This allows a position to be determined with very high accuracy. In this case, the base module has a receiving unit that is matched to the respective system. Alternatively, the cell ID of the mobile radio base station can be used by the central switching unit in order to roughly determine the position. However, this can lead to a great deal of blurring and result in the emergency call center not sending any help.

Ein System zum Generieren und Übertragen eines Notrufsignals weist ein Basismodul und eine zentrale Vermittlungseinheit auf. Das Basismodul ist an einem Straßenfahrzeug angeordnet und dazu eingerichtet, bei einer Gefahrensituation des Straßenfahrzeuges ein Notrufsignal mit einem minimalen Datensatz, der zumindest eine Identitätsinformation des jeweiligen Basismoduls und eine durch satellitengestützte Navigation ermittelte Positionsinformation des Basismoduls enthält, in codierter Form selbstständig zu generieren und durch Herstellen einer ersten Telekommunikationsverbindung mittels vorherbestimmter und im Basismodul hinterlegter Verbindungsinformationen zu einer zentralen Vermittlungseinheit zu übermitteln.A system for generating and transmitting an emergency call signal has a base module and a central switching unit. The base module is arranged on a road vehicle and is set up to independently generate and generate an emergency call signal with a minimum data set containing at least identity information of the respective base module and position information of the base module determined by satellite-supported navigation in the event of a dangerous situation of the road vehicle a first telecommunication connection by means of predetermined connection information stored in the base module to a central switching unit.

Die zentrale Vermittlungseinheit ist dazu eingerichtet, nachfolgend das Notrufsignal bezüglich der darin enthaltenen Informationen zu decodieren und aus der Positionsinformation durch die zentrale Vermittlungseinheit eine Textdatei in einer Sprache zu generieren, die in einem durch die Positionsinformation definierten Gebiet üblicherweise gesprochen wird sowie diese sprachabhängige Textdatei durch in einer Speichereinheit der zentralen Vermittlungseinheit hinterlegte Daten in eine Audiodatei umzuwandeln.The central switching unit is set up to subsequently decode the emergency call signal with regard to the information contained therein and to generate a text file from the position information by the central switching unit in a language that is usually spoken in an area defined by the position information and this language-dependent text file by in to convert data stored in a storage unit of the central switching unit into an audio file.

Die zentrale Vermittlungseinheit ist weiter dazu ausgebildet, die Audiodatei über die erste Telekommunikationsverbindung an das Basismodul zu übermitteln. Das Basismodul ist weiter dazu ausgebildet, nachfolgend durch Herstellen einer zweiten Telekommunikationsverbindung eine Notrufzentrale zu kontaktieren und die Audiodatei abzuspielen.The central switching unit is also designed to transmit the audio file to the base module via the first telecommunication connection. The base module is also designed to subsequently contact an emergency call center by establishing a second telecommunication connection and to play the audio file.

In einer Alternative kann das Basismodul dazu ausgebildet sein, durch Herstellen einer weiteren Telekommunikationsverbindung in Form einer Konferenzschaltung eine Notrufzentrale zu kontaktieren und die zentrale Vermittlungseinheit kann gleichzeitig dazu ausgebildet sein, die Audiodatei in der Konferenzschaltung abzuspielen.In an alternative, the base module can be designed to contact an emergency call center by establishing a further telecommunication connection in the form of a conference call and the central switching unit can at the same time be designed to play the audio file in the conference call.

Das Basismodul kann weiterhin dazu ausgebildet sein, im Falle eines Nichtzustandekommens der ersten Telekommunikationsverbindung zu der zentralen Vermittlungseinheit selbständig eine_Telekommunikationsverbindung zu einer Notrufzentrale herzustellen und sowohl den minimalen Datensatz (MSD) zu übermitteln, als auch eine Sprachverbindung zu unterstützen.The base module can also be designed to independently establish a telecommunication connection to an emergency call center and to transmit the minimum data set (MSD) as well as to support a voice connection in the event that the first telecommunication connection to the central switching unit fails.

Vorzugsweise ist die zentrale Vermittlungseinheit ein Server, der zum Umwandeln der Textdatei in die Audiodatei eine Text-zu-Sprache-Einheit aufweist.The central switching unit is preferably a server which has a text-to-speech unit for converting the text file into the audio file.

Die zentrale Vermittlungseinheit kann zusätzlich als Datenbank dienen, um optional sensitive Daten über den Fahrer zu speichern und im Notfall weiterzuleiten. Dies können Gesundheitsinformationen, wie z.B. Blutgruppe, Allergien, und Krankheiten sein oder Kontakte, die im Notfall benachrichtigt werden sollten.The central switching unit can also serve as a database to optionally store sensitive data about the driver and forward it in an emergency. This can include health information such as Blood group, allergies, and illnesses or contacts that should be notified in an emergency.

In einer weiteren Ausbauphase des Systems kann die zentrale Vermittlungseinheit Daten speichern, die durch das Basismodul auch im Normalbetrieb, d.h. in einem unfallfreien Betrieb, gesammelt werden können. Dies können z.B. Positionsdaten oder Daten über das Fahrverhalten sein. Positionsdaten können z.B. dazu dienen ein gestohlenes Fahrzeug zu orten. Diese Daten können über eine App oder per Sprachansage auch telefonisch abgerufen werden.In a further expansion phase of the system, the central switching unit can store data that is also generated by the base module during normal operation, i.e. in an accident-free company. This can e.g. Be position data or data on driving behavior. Position data can e.g. serve to locate a stolen vehicle. This data can also be called up by phone via an app or by voice message.

Alternativ oder zusätzlich kann im Basismodul exakt eine einzige regionenspezifische Notrufinformation in Form einer anzuwählenden Notrufnummer, beispielsweise die Notrufnummer "112" hinterlegt sein, so dass kein Speicherplatz für weitere Notrufnummern benötigt wird, die ohnehin in bestimmten Regionen, beispielsweise Europa, nicht benötigt werden.Alternatively or additionally, exactly a single region-specific emergency call information in the form of an emergency call number to be dialed, for example the emergency call number "112", can be stored in the base module, so that no storage space is required for additional emergency call numbers that are not needed anyway in certain regions, for example Europe.

Das beschriebene System ist typischerweise zum Durchführen des beschriebenen Verfahrens eingerichtet bzw. das beschriebene Verfahren ist mit dem beschriebenen System durchführbar.The described system is typically set up to carry out the described method or the described method can be carried out with the described system.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend anhand von Figur 1 erläutert.An embodiment of the invention is shown in the drawing and is explained below with reference to FIG Figure 1 explained.

Das Beispiel eines erfindungsgemäßen Systems besteht aus:

  1. 1) einem Basismodul 1, das in einem Fahrzeug verbaut ist.
  2. 2) einer zentralen Vermittlungseinheit 2 bestehend aus
    1. a) einer Nebenstelle 11, um Anrufe entgegenzunehmen,
    2. b) einem In-Band-Kommunikationsserver 12, der das empfangene Signal auswertet,
    3. c) einer Text-zu-Sprache-Einheit 7, die das ausgewertete Signal in Sprache umsetzt, und
    4. d) einer Speichereinheit 8, die die resultierende Sprachdatei speichert.
The example of a system according to the invention consists of:
  1. 1) a base module 1 that is installed in a vehicle.
  2. 2) a central switching unit 2 consisting of
    1. a) an extension 11 to receive calls,
    2. b) an in-band communication server 12 which evaluates the received signal,
    3. c) a text-to-speech unit 7 which converts the evaluated signal into speech, and
    4. d) a storage unit 8 which stores the resulting speech file.

Mitwirkend sind ein SIP-Provider 9 (Session Initiation Protocol) und eine Notrufzentrale 6 zur Entgegennahme von Notrufen.A SIP provider 9 (Session Initiation Protocol) and an emergency call center 6 for receiving emergency calls are involved.

Figur 1 zeigt ein schematisches Diagramm, in dem Kommunikationswege zwischen einzelnen Einheiten eines Systems zum Generieren und Übertragen eines Notrufsignals eingezeichnet sind. Das Basismodul 1 übermittelt bei einem Unfall durch eine erste Telekommunikationsverbindung 3a der zentralen Vermittlungseinheit 2 über das Mobilfunknetz und den SIP-Provider 9 (Session Initiation Protocol) ein Notrufsignal mit einem minimalen Datensatz (MSD), der zumindest eine Identifikationsnummer des von dem Unfall betroffenen Basismoduls 1 und eine Position desselben umfasst. Das Basismodul 1 ist an dem Fahrzeug angeordnet und verfügt über einen Empfänger für ein satellitengestütztes Navigationssystem, durch den die Position ermittelbar ist. Außerdem ist eine Sendeeinheit vorgesehen, die mit der zentralen Vermittlungseinheit 2 über das Mobilfunknetz und den SIP-Provider 9 in Kontakt treten kann. Diese übermittelt das Notrufsignal in codierter Form, worunter insbesondere ein verschlüsseltes Signal und/oder ein moduliertes oder gepacktes Signal verstanden werden soll. Figure 1 shows a schematic diagram in which communication paths between individual units of a system for generating and transmitting an emergency call signal are drawn. In the event of an accident, the base module 1 transmits an emergency signal with a minimum data record (MSD), which is at least one identification number of the base module affected by the accident, to the central switching unit 2 via the cellular network and the SIP provider 9 (Session Initiation Protocol) via a first telecommunication connection 3a 1 and a position thereof. The base module 1 is arranged on the vehicle and has a receiver for a satellite-supported navigation system by means of which the position can be determined. In addition, a transmission unit is provided which can come into contact with the central switching unit 2 via the cellular network and the SIP provider 9. This transmits the emergency signal in coded form, which is to be understood in particular as an encrypted signal and / or a modulated or packed signal.

In dem dargestellten Ausführungsbeispiel wird durch Initiieren einer Verbindung 10 mit dem In-Band-Kommunikationsserver 12 als der zentralen Vermittlungseinheit 2 das Notrufsignal über eine erste Telekommunikationsverbindung 3a, im dargestellten Ausführungsbeispiel eine VolP-Verbindung, weitergeleitet und in dem In-Band-Kommunikationsserver als zentrale Vermittlungseinheit 2 weiterverarbeitet. In weiteren Ausführungsbeispielen kann auch der SIP-Provider 9 Teil des In-Band-Kommunikationsservers als zentrale Vermittlungseinheit 2 sein.In the illustrated embodiment, by initiating a connection 10 with the in-band communication server 12 as the central switching unit 2, the emergency call signal is forwarded via a first telecommunication connection 3a, in the illustrated embodiment a VoIP connection, and in the in-band communication server as the central one Switching unit 2 further processed. In further exemplary embodiments, the SIP provider 9 can also be part of the in-band communication server as the central switching unit 2.

Die Nebenstelle 11 in dem In-Band-Kommunikationsserver als zentrale Vermittlungseinheit 2, im dargestellten Ausführungsbeispiel z.B. ein Asterisk-PBX (Private Branch Exchange), nimmt das Notrufsignal entgegen, übermittelt es an den In-Band-Server 12, der das Notrufsignal decodiert. Nach dem Decodieren erzeugt der In-Band-Server 12 eine sprachabhängige Textdatei. Die Sprache der Datei richtet sich im dargestellten Ausführungsbeispiel nach einer Amtssprache des Landes oder der Region, in dem sich das Fahrzeug laut den Positionsinformationen gerade befindet. Hierzu sind in einem Speicher des In-Band-Kommunikationsservers als zentrale Vermittlungseinheit 2 mehrere entsprechende sprachabhängige Textdateien gespeichert.The extension 11 in the in-band communication server as the central switching unit 2, e.g. an Asterisk PBX (Private Branch Exchange) receives the emergency call signal and transmits it to the in-band server 12, which decodes the emergency call signal. After decoding, the in-band server 12 creates a language dependent text file. In the exemplary embodiment shown, the language of the file is based on an official language of the country or region in which the vehicle is currently located according to the position information. For this purpose, several corresponding language-dependent text files are stored in a memory of the in-band communication server as the central switching unit 2.

Die sprachabhängige Textdatei wird an eine Text-zu-Sprache-Einheit 7 übergeben, die ebenfalls eine interne Speichereinheit 8 aufweist. Die Text-zu-Sprache-Einheit 7, die auch als "Text-to-Speech"-Einheit (TTS) bezeichnet wird, wandelt die sprachabhängige Textdatei in eine Audiodatei in der gleichen Sprache um, wozu sie auf gespeicherte Sprachausdrücke, die in der internen Speichereinheit 8 hinterlegt sind, zurückgreift. Die Text-zu-Sprache-Einheit 7 leitet die Audiodatei an die Nebenstelle 11 weiter. Außerdem übermittelt die Text-zu-Sprache-Einheit 7 ein Stoppsignal über die Nebenstelle 11, um eine weitere Übertragung des Notrufsignals zu unterbinden. Gleichzeitig werden in dem dargestellten Ausführungsbeispiel die in dem ursprünglichen Notrufsignal enthaltenen Informationen sowie die erzeugte Textdatei und die erzeugte Audiodatei über einen Kommunikationskanal 13 unabhängig von vorangegangenen Schritten an eine externe Speichereinheit 5 übermittelt und dort zu Beweissicherungszwecken gespeichert.The language-dependent text file is transferred to a text-to-speech unit 7, which also has an internal memory unit 8. The text-to-speech unit 7, which is also referred to as "text-to-speech" unit (TTS), converts the language-dependent text file into an audio file in the same language, for which purpose it is based on stored speech expressions which are in the internal memory unit 8 are stored, accesses. The text-to-speech unit 7 forwards the audio file to the extension 11. In addition, the text-to-speech unit 7 transmits a stop signal via the extension 11 in order to prevent further transmission of the emergency call signal. At the same time, in the exemplary embodiment shown, the information contained in the original emergency call signal as well as the generated text file and the generated audio file are transmitted to an external memory unit 5 via a communication channel 13, regardless of previous steps, and are stored there for preservation of evidence.

Die Nebenstelle 11, der In-Band-Server 12 und die Text-zu-Sprache-Einheit 7 können in einem einzigen Server kombiniert sein oder als separate Server vorliegen.The extension 11, the in-band server 12 and the text-to-speech unit 7 can be combined in a single server or exist as separate servers.

Die Nebenstelle 11 übermittelt die Audiodatei über den SIP-Provider 9 und die erste Telekommunikationsverbindung 3b, die in Figur 1 aus Gründen der Übersichtlichkeit in zwei Pfeilen mit unterschiedlichen Bezugszeichen gehalten ist, an das Basismodul 1. Dies erfolgt typischerweise in Form eines Anrufes, den das Basismodul 1 entgegennimmt und einen Konferenzanruf zwischen einer Notrufzentrale 6 über eine zweite Telekommunikationsverbindung 4, einem Insassen des verunglückten Fahrzeugs und dem In-Band-Kommunikationsserver 2 aufbaut.The extension 11 transmits the audio file via the SIP provider 9 and the first telecommunication connection 3b, which in Figure 1 for the sake of clarity in two arrows with different reference numerals, to the base module 1. This is typically in the form of a call that the base module 1 accepts and a conference call between an emergency call center 6 via a second telecommunication link 4, an occupant of the crashed vehicle and the in-band communication server 2 builds.

Alternativ kann die Telefonverbindung zu der zentralen Vermittlungseinheit 2 aufrecht erhalten bleiben und die zweite Telefonverbindung zu der Notrufzentrale 6 als Konferenzschaltung durch das Basismodul 1 hergestellt werden.Alternatively, the telephone connection to the central switching unit 2 can be maintained and the second telephone connection to the emergency call center 6 can be established as a conference call by the base module 1.

Die Notrufzentrale 6, auch als "public answering safety point, PSAP" bezeichnet, bekommt mindestens zwei Mal die von der zentralen Vermittlungseinheit 2 übermittelte Audiodatei vorgespielt und kann in der Folge über die zweite Kommunikationsverbindung 4 versuchen, mit einem der Fahrzeuginsassen, typischerweise einem Fahrer des Fahrzeugs, zu sprechen, um weitere Informationen über den Unfall zu erhalten. Der entsprechende Fahrzeuginsasse ist hierbei in dem dargestellten Ausführungsbeispiel über eine Bluetooth-Verbindung Teilnehmer des Konferenzanrufs.The emergency call center 6, also referred to as "public answering safety point, PSAP", is played at least twice the audio file transmitted by the central switching unit 2 and can then attempt to communicate with one of the vehicle occupants, typically a driver, via the second communication link 4 Vehicle, speak for more information about the accident. In the exemplary embodiment shown, the corresponding vehicle occupant is a participant in the conference call via a Bluetooth connection.

Falls aus nicht vorhersehbaren Gründen keine Rückantwort von der Notrufzentrale 6 oder der zentralen Vermittlungseinheit 2 das Basismodul 1 erreicht, kann das Basismodul 1 nach Ablauf einer vorgebbaren Zeit selbständig eine Verbindung zur Notfallzentrale 6 aufbauen und die Daten versuchen In-Band zu übertragen sowie die Sprachverbindung herzustellen.If, for unforeseeable reasons, no response from the emergency call center 6 or the central switching unit 2 reaches the base module 1, the base module 1 can independently set up a connection to the emergency center 6 after a predetermined time has elapsed and try to transmit the data in-band and establish the voice connection .

Um Fehlalarme zu vermeiden, kann außerdem vorgesehen sein, dass ein optisches Signal, wie eine blinkende LED den Fahrzeugbetreibern das Absetzen des Notrufsignals anzeigt und über Drücken eines bestimmten Tasters das Senden des Notrufsignals von einem der Fahrer unterbunden werden kann.In order to avoid false alarms, provision can also be made for an optical signal, such as a flashing LED, to indicate to the vehicle operator that the emergency call signal has been sent and for one of the drivers to prevent the emergency call signal from being sent by pressing a specific button.

Der Konferenzanruf wird schließlich entweder von der Notrufzentrale 6 oder dem Basismodul 1, beispielsweise initiiert durch einen der Fahrzeuginsassen, beendet.The conference call is finally ended either by the emergency call center 6 or the base module 1, for example initiated by one of the vehicle occupants.

Claims (15)

  1. Method for generating and transmitting an emergency call signal, in which,
    in the event of a dangerous situation involving a road vehicle, an emergency call signal having a minimum set of data (MSD) is independently generated in coded form by a base module (1) arranged on the road vehicle, said set of data containing at least one item of identity information relating to the respective base module (1) and an item of position information relating to the base module (1) which is determined by means of satellite-based navigation or by identifying the radio cell in which the road vehicle is situated, and
    is transmitted to a central switching unit (2) by establishing a first telecommunications connection (3a, 3b) by means of predetermined connection information stored in the base module (1), wherein
    the emergency call signal is then decoded with respect to the information contained therein by the central switching unit (2), and
    a text file is generated, from the position information by the central switching unit (2), in a language which is conventional in an area defined by the position information, wherein
    this language-dependent text file is converted into an audio file by means of data stored in a storage unit (8) of the central switching unit (2), and
    the audio file is transmitted to the base module (1) via the first telecommunications connection (3a, 3b), and an emergency call centre (6) is then contacted by the base module (1) by establishing a second telecommunications connection (4), and the audio file is played at least once, or
    a conference call is set up between the base module (1), the emergency call centre (6) and the central switching unit (2) by the base module (1) and the audio file is then played at least once in the conference call.
  2. Method according to Claim 1, characterized in that the first telecommunications connection (3a, 3b) and/or the second telecommunications connection (4) is/are in the form of a radio connection or a telephone connection.
  3. Method according to Claim 2, characterized in that the first telecommunications connection (3a, 3b) and/or the second telecommunications connection is/are in the form of an Internet telephony connection.
  4. Method according to one of the preceding claims, characterized in that the central switching unit (2) transmits a stop signal to the base module (1) as soon as the text file has been generated in the central switching unit (2), with the result that the transmission of the emergency call signal is terminated by the base module (1).
  5. Method according to one of the preceding claims, characterized in that the decoded information from the emergency call signal is forwarded from the central switching unit (2) to an external storage unit (5) and is archived there.
  6. Method according to one of the preceding claims, characterized in that a user of the road vehicle has a voice connection to the base module (1) via a wireless radio connection, preferably via a wireless radio connection according to the industrial standard IEEE 802.15.1.
  7. Method according to one of the preceding claims, characterized in that the establishment of the first telecommunications connection (3a, 3b) is indicated to the user of the vehicle by the base module and the user can terminate the transmission of the emergency call signal.
  8. Method according to one of the preceding claims, characterized in that, at the start of the voice connection to the emergency call centre (6), the minimum set of data (MSD) is transmitted in accordance with the e-call standard and the audio file is then played.
  9. Method according to one of the preceding claims, characterized in that the audio file is played to the emergency call centre (6) in a constantly repeated manner until the emergency call centre or the user stops the playback by means of voice or by means of a signal transmitted in another manner, and/or
    in that further parties preconfigured in the central switching unit (2) are informed by the central switching unit (2).
  10. System for generating and transmitting an emergency call signal, in which
    a base module (1) is arranged on a road vehicle and is set up, in the event of a dangerous situation involving the road vehicle, to independently generate an emergency call signal having a minimum set of data (MSD) in coded form, said set of data containing at least one item of identity information relating to the respective base module (1) and an item of position information relating to the base module (1) which is determined by means of satellite-based navigation, and
    to transmit said emergency call signal to a central switching unit (2) by establishing a first telecommunications connection (3a, 3b) by means of predetermined connection information stored in the base module (1), wherein
    the central switching unit (2) is set up to then decode the emergency call signal with respect to the information contained therein and
    to generate a text file, from the position information by means of the central switching unit (2), in a language which is usually spoken in an area defined by the position information and
    to convert this language-dependent text file into an audio file by means of data stored in a storage unit (8) of the central switching unit (2), characterized in that the central switching unit (2) is set up
    to transmit the audio file to the base module (1) via the first telecommunications connection (3a, 3b), wherein the base module (1) is then designed to contact an emergency call centre (6) by establishing a second telecommunications connection (4) and to play the audio file, or characterized in that
    the base module (1) is designed to contact an emergency call centre (6) by establishing a second telecommunications connection (4) in the form of a conference call, wherein the central switching unit (2) is designed to play the audio file in the conference call.
  11. System according to Claim 10, characterized in that the base module (1) is designed to independently establish a telecommunications connection (4) to an emergency call centre (6) in the absence of the first telecommunications connection (3a) to the central switching unit (2) and to both transmit the minimum set of data (MSD) and support a voice connection.
  12. System according to Claim 10 or 11, characterized in that the central switching unit (2) is a server which has a text-to-speech unit (7) for converting the text file into the audio file.
  13. System according to one of Claims 10 to 12, characterized in that exactly one single item of region-specific emergency call information in the form of an emergency call number to be dialled is stored in the base module (1).
  14. System according to one of Claims 10 to 13, characterized in that the central switching unit (2) is designed, as a database, to store sensitive data relating to the driver, in particular health information, illnesses and/or contacts to be informed in an emergency, and to forward said data in an emergency.
  15. System according to one of Claims 10 to 14, characterized in that the central switching unit (2) is designed to store data collected by the base module (1) during normal operation, in particular position data and/or data relating to the driving behaviour.
EP16779005.4A 2015-09-22 2016-09-20 Method and system for generating and transmitting an emergency call signal Active EP3353758B1 (en)

Applications Claiming Priority (2)

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DE102015218170.7A DE102015218170A1 (en) 2015-09-22 2015-09-22 Method and system for generating and transmitting an emergency call signal
PCT/EP2016/072280 WO2017050748A1 (en) 2015-09-22 2016-09-20 Method and system for generating and transmitting an emergency call signal

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EP (1) EP3353758B1 (en)
JP (1) JP2018527684A (en)
DE (1) DE102015218170A1 (en)
DK (1) DK3353758T3 (en)
ES (1) ES2828725T3 (en)
PT (1) PT3353758T (en)
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DE102015218170A1 (en) 2017-03-23
WO2017050748A1 (en) 2017-03-30
DK3353758T3 (en) 2020-11-02
RU2018109764A (en) 2019-10-25
ES2828725T3 (en) 2021-05-27
US20180268681A1 (en) 2018-09-20
EP3353758A1 (en) 2018-08-01
PT3353758T (en) 2020-11-03

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